tompahoward

The Tiny Style plugin re-adds style editing support to the TinyMCE Rich Visual Editor. 
The TinyMCE style plugin is normally bundled with TinyMCE, but it has be removed from the 
version within WordPress. This plugin puts it back in.
Most of the credit for this plugin belogns to [Moxiecode Systems] (http://tinymce.moxiecode.com/ ), 
who wrote the style plugin for TinyMCE, which this plugin uses.
<h3>Release Notes</h3>
<ul>
<li>0.0.1
<ul>
<li>Added workaround for TinyMCE compressor issues.</li>
</ul>
</li>
<li>0.0.0
<ul>
<li>Initial Release</li>
</ul>
</li>
</ul>

Tiny Style

The Tiny Style plugin re-adds style editing support to the TinyMCE Rich Visual Editor

keegnotrub

An update on the incredible Art Direction plugin by Noël Jackson (http://noel.io) and Dave Rupert (http://daverupert.com). Allows you to enter custom CSS to be applied per post/page.
Additional features include:
<ul>
<li>Optionally place span classes on your post/page title characters </li>
<li>Optionally place span classes on your post/page title words</li>
<li>Ability to responsivley use viewport units on post/page title</li>
</ul>

Artsy

Art Direction for WordPress - Allows you to enter custom CSS to be applied per post/page.

Tiny Style vs Artsy